3439492

Information

• Patent Grant
• 3439492

• References
• Source

• Patent Number

  3,439,492

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1969
  55 years ago

• CPC

  • G04C3/14 - incorporating a stepping motor
  • G04B19/34 - Position of the hands projected optically

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 116 - Signals and indicators
  • 353 - Optics: image projectors
  • 968 - Horology
  • D10 - Measuring, testing, or signalling instruments